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<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</em>
<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_comment"> * contributor license agreements.  See the NOTICE file distributed with</em>
<a class="jxr_linenumber" name="4" href="#4">4</a>   <em class="jxr_comment"> * this work for additional information regarding copyright ownership.</em>
<a class="jxr_linenumber" name="5" href="#5">5</a>   <em class="jxr_comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</em>
<a class="jxr_linenumber" name="6" href="#6">6</a>   <em class="jxr_comment"> * (the "License"); you may not use this file except in compliance with</em>
<a class="jxr_linenumber" name="7" href="#7">7</a>   <em class="jxr_comment"> * the License.  You may obtain a copy of the License at</em>
<a class="jxr_linenumber" name="8" href="#8">8</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="9" href="#9">9</a>   <em class="jxr_comment"> *     <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a class="jxr_linenumber" name="10" href="#10">10</a>  <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="11" href="#11">11</a>  <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a class="jxr_linenumber" name="12" href="#12">12</a>  <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
<a class="jxr_linenumber" name="13" href="#13">13</a>  <em class="jxr_comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a class="jxr_linenumber" name="14" href="#14">14</a>  <em class="jxr_comment"> * See the License for the specific language governing permissions and</em>
<a class="jxr_linenumber" name="15" href="#15">15</a>  <em class="jxr_comment"> * limitations under the License.</em>
<a class="jxr_linenumber" name="16" href="#16">16</a>  <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="17" href="#17">17</a>  
<a class="jxr_linenumber" name="18" href="#18">18</a>  <strong class="jxr_keyword">package</strong> org.apache.commons.configuration;
<a class="jxr_linenumber" name="19" href="#19">19</a>  
<a class="jxr_linenumber" name="20" href="#20">20</a>  <strong class="jxr_keyword">import</strong> java.io.File;
<a class="jxr_linenumber" name="21" href="#21">21</a>  <strong class="jxr_keyword">import</strong> java.io.PrintStream;
<a class="jxr_linenumber" name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> java.io.PrintWriter;
<a class="jxr_linenumber" name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> java.io.StringWriter;
<a class="jxr_linenumber" name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> java.lang.reflect.InvocationTargetException;
<a class="jxr_linenumber" name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> java.lang.reflect.Method;
<a class="jxr_linenumber" name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong> java.net.MalformedURLException;
<a class="jxr_linenumber" name="27" href="#27">27</a>  <strong class="jxr_keyword">import</strong> java.net.URL;
<a class="jxr_linenumber" name="28" href="#28">28</a>  <strong class="jxr_keyword">import</strong> java.util.Iterator;
<a class="jxr_linenumber" name="29" href="#29">29</a>  
<a class="jxr_linenumber" name="30" href="#30">30</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.configuration.event.ConfigurationErrorEvent;
<a class="jxr_linenumber" name="31" href="#31">31</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.configuration.event.ConfigurationErrorListener;
<a class="jxr_linenumber" name="32" href="#32">32</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.configuration.event.EventSource;
<a class="jxr_linenumber" name="33" href="#33">33</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.configuration.reloading.Reloadable;
<a class="jxr_linenumber" name="34" href="#34">34</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.configuration.tree.ExpressionEngine;
<a class="jxr_linenumber" name="35" href="#35">35</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.lang.StringUtils;
<a class="jxr_linenumber" name="36" href="#36">36</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.logging.Log;
<a class="jxr_linenumber" name="37" href="#37">37</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.logging.LogFactory;
<a class="jxr_linenumber" name="38" href="#38">38</a>  
<a class="jxr_linenumber" name="39" href="#39">39</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="40" href="#40">40</a>  <em class="jxr_javadoccomment"> * Miscellaneous utility methods for configurations.</em>
<a class="jxr_linenumber" name="41" href="#41">41</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="42" href="#42">42</a>  <em class="jxr_javadoccomment"> * @see ConfigurationConverter Utility methods to convert configurations.</em>
<a class="jxr_linenumber" name="43" href="#43">43</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="44" href="#44">44</a>  <em class="jxr_javadoccomment"> * @author &lt;a href="<a href="mailto:herve.quiroz@esil.univ-mrs.fr" target="alexandria_uri">mailto:herve.quiroz@esil.univ-mrs.fr</a>"&gt;Herve Quiroz&lt;/a&gt;</em>
<a class="jxr_linenumber" name="45" href="#45">45</a>  <em class="jxr_javadoccomment"> * @author Emmanuel Bourg</em>
<a class="jxr_linenumber" name="46" href="#46">46</a>  <em class="jxr_javadoccomment"> * @version $Id: ConfigurationUtils.java 1208795 2011-11-30 21:18:17Z oheger $</em>
<a class="jxr_linenumber" name="47" href="#47">47</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="48" href="#48">48</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/commons/configuration/ConfigurationUtils.html">ConfigurationUtils</a>
<a class="jxr_linenumber" name="49" href="#49">49</a>  {
<a class="jxr_linenumber" name="50" href="#50">50</a>      <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Constant for the file URL protocol.*/</em>
<a class="jxr_linenumber" name="51" href="#51">51</a>      <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String PROTOCOL_FILE = <span class="jxr_string">"file"</span>;
<a class="jxr_linenumber" name="52" href="#52">52</a>  
<a class="jxr_linenumber" name="53" href="#53">53</a>      <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Constant for the resource path separator.*/</em>
<a class="jxr_linenumber" name="54" href="#54">54</a>      <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String RESOURCE_PATH_SEPARATOR = <span class="jxr_string">"/"</span>;
<a class="jxr_linenumber" name="55" href="#55">55</a>  
<a class="jxr_linenumber" name="56" href="#56">56</a>      <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Constant for the file URL protocol */</em>
<a class="jxr_linenumber" name="57" href="#57">57</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String FILE_SCHEME = <span class="jxr_string">"file:"</span>;
<a class="jxr_linenumber" name="58" href="#58">58</a>  
<a class="jxr_linenumber" name="59" href="#59">59</a>      <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Constant for the name of the clone() method.*/</em>
<a class="jxr_linenumber" name="60" href="#60">60</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String METHOD_CLONE = <span class="jxr_string">"clone"</span>;
<a class="jxr_linenumber" name="61" href="#61">61</a>  
<a class="jxr_linenumber" name="62" href="#62">62</a>      <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Constant for parsing numbers in hex format. */</em>
<a class="jxr_linenumber" name="63" href="#63">63</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> HEX = 16;
<a class="jxr_linenumber" name="64" href="#64">64</a>  
<a class="jxr_linenumber" name="65" href="#65">65</a>      <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> The logger.*/</em>
<a class="jxr_linenumber" name="66" href="#66">66</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Log LOG = LogFactory.getLog(ConfigurationUtils.<strong class="jxr_keyword">class</strong>);
<a class="jxr_linenumber" name="67" href="#67">67</a>  
<a class="jxr_linenumber" name="68" href="#68">68</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="69" href="#69">69</a>  <em class="jxr_javadoccomment">     * Private constructor. Prevents instances from being created.</em>
<a class="jxr_linenumber" name="70" href="#70">70</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="71" href="#71">71</a>      <strong class="jxr_keyword">private</strong> <a href="../../../../org/apache/commons/configuration/ConfigurationUtils.html">ConfigurationUtils</a>()
<a class="jxr_linenumber" name="72" href="#72">72</a>      {
<a class="jxr_linenumber" name="73" href="#73">73</a>          <em class="jxr_comment">// to prevent instantiation...</em>
<a class="jxr_linenumber" name="74" href="#74">74</a>      }
<a class="jxr_linenumber" name="75" href="#75">75</a>  
<a class="jxr_linenumber" name="76" href="#76">76</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="77" href="#77">77</a>  <em class="jxr_javadoccomment">     * Dump the configuration key/value mappings to some ouput stream.</em>
<a class="jxr_linenumber" name="78" href="#78">78</a>  <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="79" href="#79">79</a>  <em class="jxr_javadoccomment">     * @param configuration the configuration</em>
<a class="jxr_linenumber" name="80" href="#80">80</a>  <em class="jxr_javadoccomment">     * @param out the output stream to dump the configuration to</em>
<a class="jxr_linenumber" name="81" href="#81">81</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="82" href="#82">82</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> dump(<a href="../../../../org/apache/commons/configuration/Configuration.html">Configuration</a> configuration, PrintStream out)
<a class="jxr_linenumber" name="83" href="#83">83</a>      {
<a class="jxr_linenumber" name="84" href="#84">84</a>          dump(configuration, <strong class="jxr_keyword">new</strong> PrintWriter(out));
<a class="jxr_linenumber" name="85" href="#85">85</a>      }
<a class="jxr_linenumber" name="86" href="#86">86</a>  
<a class="jxr_linenumber" name="87" href="#87">87</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="88" href="#88">88</a>  <em class="jxr_javadoccomment">     * Dump the configuration key/value mappings to some writer.</em>
<a class="jxr_linenumber" name="89" href="#89">89</a>  <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="90" href="#90">90</a>  <em class="jxr_javadoccomment">     * @param configuration the configuration</em>
<a class="jxr_linenumber" name="91" href="#91">91</a>  <em class="jxr_javadoccomment">     * @param out the writer to dump the configuration to</em>
<a class="jxr_linenumber" name="92" href="#92">92</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="93" href="#93">93</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> dump(<a href="../../../../org/apache/commons/configuration/Configuration.html">Configuration</a> configuration, PrintWriter out)
<a class="jxr_linenumber" name="94" href="#94">94</a>      {
<a class="jxr_linenumber" name="95" href="#95">95</a>          <strong class="jxr_keyword">for</strong> (Iterator&lt;String&gt; keys = configuration.getKeys(); keys.hasNext();)
<a class="jxr_linenumber" name="96" href="#96">96</a>          {
<a class="jxr_linenumber" name="97" href="#97">97</a>              String key = keys.next();
<a class="jxr_linenumber" name="98" href="#98">98</a>              Object value = configuration.getProperty(key);
<a class="jxr_linenumber" name="99" href="#99">99</a>              out.print(key);
<a class="jxr_linenumber" name="100" href="#100">100</a>             out.print(<span class="jxr_string">"="</span>);
<a class="jxr_linenumber" name="101" href="#101">101</a>             out.print(value);
<a class="jxr_linenumber" name="102" href="#102">102</a> 
<a class="jxr_linenumber" name="103" href="#103">103</a>             <strong class="jxr_keyword">if</strong> (keys.hasNext())
<a class="jxr_linenumber" name="104" href="#104">104</a>             {
<a class="jxr_linenumber" name="105" href="#105">105</a>                 out.println();
<a class="jxr_linenumber" name="106" href="#106">106</a>             }
<a class="jxr_linenumber" name="107" href="#107">107</a>         }
<a class="jxr_linenumber" name="108" href="#108">108</a> 
<a class="jxr_linenumber" name="109" href="#109">109</a>         out.flush();
<a class="jxr_linenumber" name="110" href="#110">110</a>     }
<a class="jxr_linenumber" name="111" href="#111">111</a> 
<a class="jxr_linenumber" name="112" href="#112">112</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="113" href="#113">113</a> <em class="jxr_javadoccomment">     * Get a string representation of the key/value mappings of a</em>
<a class="jxr_linenumber" name="114" href="#114">114</a> <em class="jxr_javadoccomment">     * configuration.</em>
<a class="jxr_linenumber" name="115" href="#115">115</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="116" href="#116">116</a> <em class="jxr_javadoccomment">     * @param configuration the configuration</em>
<a class="jxr_linenumber" name="117" href="#117">117</a> <em class="jxr_javadoccomment">     * @return a string representation of the configuration</em>
<a class="jxr_linenumber" name="118" href="#118">118</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="119" href="#119">119</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> String toString(<a href="../../../../org/apache/commons/configuration/Configuration.html">Configuration</a> configuration)
<a class="jxr_linenumber" name="120" href="#120">120</a>     {
<a class="jxr_linenumber" name="121" href="#121">121</a>         StringWriter writer = <strong class="jxr_keyword">new</strong> StringWriter();
<a class="jxr_linenumber" name="122" href="#122">122</a>         dump(configuration, <strong class="jxr_keyword">new</strong> PrintWriter(writer));
<a class="jxr_linenumber" name="123" href="#123">123</a>         <strong class="jxr_keyword">return</strong> writer.toString();
<a class="jxr_linenumber" name="124" href="#124">124</a>     }
<a class="jxr_linenumber" name="125" href="#125">125</a> 
<a class="jxr_linenumber" name="126" href="#126">126</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="127" href="#127">127</a> <em class="jxr_javadoccomment">     * &lt;p&gt;Copy all properties from the source configuration to the target</em>
<a class="jxr_linenumber" name="128" href="#128">128</a> <em class="jxr_javadoccomment">     * configuration. Properties in the target configuration are replaced with</em>
<a class="jxr_linenumber" name="129" href="#129">129</a> <em class="jxr_javadoccomment">     * the properties with the same key in the source configuration.&lt;/p&gt;</em>
<a class="jxr_linenumber" name="130" href="#130">130</a> <em class="jxr_javadoccomment">     * &lt;p&gt;&lt;em&gt;Note:&lt;/em&gt; This method is not able to handle some specifics of</em>
<a class="jxr_linenumber" name="131" href="#131">131</a> <em class="jxr_javadoccomment">     * configurations derived from {@code AbstractConfiguration} (e.g.</em>
<a class="jxr_linenumber" name="132" href="#132">132</a> <em class="jxr_javadoccomment">     * list delimiters). For a full support of all of these features the</em>
<a class="jxr_linenumber" name="133" href="#133">133</a> <em class="jxr_javadoccomment">     * {@code copy()} method of {@code AbstractConfiguration} should</em>
<a class="jxr_linenumber" name="134" href="#134">134</a> <em class="jxr_javadoccomment">     * be used. In a future release this method might become deprecated.&lt;/p&gt;</em>
<a class="jxr_linenumber" name="135" href="#135">135</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="136" href="#136">136</a> <em class="jxr_javadoccomment">     * @param source the source configuration</em>
<a class="jxr_linenumber" name="137" href="#137">137</a> <em class="jxr_javadoccomment">     * @param target the target configuration</em>
<a class="jxr_linenumber" name="138" href="#138">138</a> <em class="jxr_javadoccomment">     * @since 1.1</em>
<a class="jxr_linenumber" name="139" href="#139">139</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="140" href="#140">140</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> copy(<a href="../../../../org/apache/commons/configuration/Configuration.html">Configuration</a> source, <a href="../../../../org/apache/commons/configuration/Configuration.html">Configuration</a> target)
<a class="jxr_linenumber" name="141" href="#141">141</a>     {
<a class="jxr_linenumber" name="142" href="#142">142</a>         <strong class="jxr_keyword">for</strong> (Iterator&lt;String&gt; keys = source.getKeys(); keys.hasNext();)
<a class="jxr_linenumber" name="143" href="#143">143</a>         {
<a class="jxr_linenumber" name="144" href="#144">144</a>             String key = keys.next();
<a class="jxr_linenumber" name="145" href="#145">145</a>             target.setProperty(key, source.getProperty(key));
<a class="jxr_linenumber" name="146" href="#146">146</a>         }
<a class="jxr_linenumber" name="147" href="#147">147</a>     }
<a class="jxr_linenumber" name="148" href="#148">148</a> 
<a class="jxr_linenumber" name="149" href="#149">149</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="150" href="#150">150</a> <em class="jxr_javadoccomment">     * &lt;p&gt;Append all properties from the source configuration to the target</em>
<a class="jxr_linenumber" name="151" href="#151">151</a> <em class="jxr_javadoccomment">     * configuration. Properties in the source configuration are appended to</em>
<a class="jxr_linenumber" name="152" href="#152">152</a> <em class="jxr_javadoccomment">     * the properties with the same key in the target configuration.&lt;/p&gt;</em>
<a class="jxr_linenumber" name="153" href="#153">153</a> <em class="jxr_javadoccomment">     * &lt;p&gt;&lt;em&gt;Note:&lt;/em&gt; This method is not able to handle some specifics of</em>
<a class="jxr_linenumber" name="154" href="#154">154</a> <em class="jxr_javadoccomment">     * configurations derived from {@code AbstractConfiguration} (e.g.</em>
<a class="jxr_linenumber" name="155" href="#155">155</a> <em class="jxr_javadoccomment">     * list delimiters). For a full support of all of these features the</em>
<a class="jxr_linenumber" name="156" href="#156">156</a> <em class="jxr_javadoccomment">     * {@code copy()} method of {@code AbstractConfiguration} should</em>
<a class="jxr_linenumber" name="157" href="#157">157</a> <em class="jxr_javadoccomment">     * be used. In a future release this method might become deprecated.&lt;/p&gt;</em>
<a class="jxr_linenumber" name="158" href="#158">158</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="159" href="#159">159</a> <em class="jxr_javadoccomment">     * @param source the source configuration</em>
<a class="jxr_linenumber" name="160" href="#160">160</a> <em class="jxr_javadoccomment">     * @param target the target configuration</em>
<a class="jxr_linenumber" name="161" href="#161">161</a> <em class="jxr_javadoccomment">     * @since 1.1</em>
<a class="jxr_linenumber" name="162" href="#162">162</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="163" href="#163">163</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> append(<a href="../../../../org/apache/commons/configuration/Configuration.html">Configuration</a> source, <a href="../../../../org/apache/commons/configuration/Configuration.html">Configuration</a> target)
<a class="jxr_linenumber" name="164" href="#164">164</a>     {
<a class="jxr_linenumber" name="165" href="#165">165</a>         <strong class="jxr_keyword">for</strong> (Iterator&lt;String&gt; keys = source.getKeys(); keys.hasNext();)
<a class="jxr_linenumber" name="166" href="#166">166</a>         {
<a class="jxr_linenumber" name="167" href="#167">167</a>             String key = keys.next();
<a class="jxr_linenumber" name="168" href="#168">168</a>             target.addProperty(key, source.getProperty(key));
<a class="jxr_linenumber" name="169" href="#169">169</a>         }
<a class="jxr_linenumber" name="170" href="#170">170</a>     }
<a class="jxr_linenumber" name="171" href="#171">171</a> 
<a class="jxr_linenumber" name="172" href="#172">172</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="173" href="#173">173</a> <em class="jxr_javadoccomment">     * Converts the passed in configuration to a hierarchical one. If the</em>
<a class="jxr_linenumber" name="174" href="#174">174</a> <em class="jxr_javadoccomment">     * configuration is already hierarchical, it is directly returned. Otherwise</em>
<a class="jxr_linenumber" name="175" href="#175">175</a> <em class="jxr_javadoccomment">     * all properties are copied into a new hierarchical configuration.</em>
<a class="jxr_linenumber" name="176" href="#176">176</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="177" href="#177">177</a> <em class="jxr_javadoccomment">     * @param conf the configuration to convert</em>
<a class="jxr_linenumber" name="178" href="#178">178</a> <em class="jxr_javadoccomment">     * @return the new hierarchical configuration (the result is &lt;b&gt;null&lt;/b&gt; if</em>
<a class="jxr_linenumber" name="179" href="#179">179</a> <em class="jxr_javadoccomment">     * and only if the passed in configuration is &lt;b&gt;null&lt;/b&gt;)</em>
<a class="jxr_linenumber" name="180" href="#180">180</a> <em class="jxr_javadoccomment">     * @since 1.3</em>
<a class="jxr_linenumber" name="181" href="#181">181</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="182" href="#182">182</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../org/apache/commons/configuration/HierarchicalConfiguration.html">HierarchicalConfiguration</a> convertToHierarchical(
<a class="jxr_linenumber" name="183" href="#183">183</a>             <a href="../../../../org/apache/commons/configuration/Configuration.html">Configuration</a> conf)
<a class="jxr_linenumber" name="184" href="#184">184</a>     {
<a class="jxr_linenumber" name="185" href="#185">185</a>         <strong class="jxr_keyword">return</strong> convertToHierarchical(conf, <strong class="jxr_keyword">null</strong>);
<a class="jxr_linenumber" name="186" href="#186">186</a>     }
<a class="jxr_linenumber" name="187" href="#187">187</a> 
<a class="jxr_linenumber" name="188" href="#188">188</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="189" href="#189">189</a> <em class="jxr_javadoccomment">     * Converts the passed in {@code Configuration} object to a</em>
<a class="jxr_linenumber" name="190" href="#190">190</a> <em class="jxr_javadoccomment">     * hierarchical one using the specified {@code ExpressionEngine}. This</em>
<a class="jxr_linenumber" name="191" href="#191">191</a> <em class="jxr_javadoccomment">     * conversion works by adding the keys found in the configuration to a newly</em>
<a class="jxr_linenumber" name="192" href="#192">192</a> <em class="jxr_javadoccomment">     * created hierarchical configuration. When adding new keys to a</em>
<a class="jxr_linenumber" name="193" href="#193">193</a> <em class="jxr_javadoccomment">     * hierarchical configuration the keys are interpreted by its</em>
<a class="jxr_linenumber" name="194" href="#194">194</a> <em class="jxr_javadoccomment">     * {@code ExpressionEngine}. If they contain special characters (e.g.</em>
<a class="jxr_linenumber" name="195" href="#195">195</a> <em class="jxr_javadoccomment">     * brackets) that are treated in a special way by the default expression</em>
<a class="jxr_linenumber" name="196" href="#196">196</a> <em class="jxr_javadoccomment">     * engine, it may be necessary using a specific engine that can deal with</em>
<a class="jxr_linenumber" name="197" href="#197">197</a> <em class="jxr_javadoccomment">     * such characters. Otherwise &lt;b&gt;null&lt;/b&gt; can be passed in for the</em>
<a class="jxr_linenumber" name="198" href="#198">198</a> <em class="jxr_javadoccomment">     * {@code ExpressionEngine}; then the default expression engine is</em>
<a class="jxr_linenumber" name="199" href="#199">199</a> <em class="jxr_javadoccomment">     * used. If the passed in configuration is already hierarchical, it is</em>
<a class="jxr_linenumber" name="200" href="#200">200</a> <em class="jxr_javadoccomment">     * directly returned. (However, the {@code ExpressionEngine} is set if</em>
<a class="jxr_linenumber" name="201" href="#201">201</a> <em class="jxr_javadoccomment">     * it is not &lt;b&gt;null&lt;/b&gt;.) Otherwise all properties are copied into a new</em>
<a class="jxr_linenumber" name="202" href="#202">202</a> <em class="jxr_javadoccomment">     * hierarchical configuration.</em>
<a class="jxr_linenumber" name="203" href="#203">203</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="204" href="#204">204</a> <em class="jxr_javadoccomment">     * @param conf the configuration to convert</em>
<a class="jxr_linenumber" name="205" href="#205">205</a> <em class="jxr_javadoccomment">     * @param engine the {@code ExpressionEngine} for the hierarchical</em>
<a class="jxr_linenumber" name="206" href="#206">206</a> <em class="jxr_javadoccomment">     *        configuration or &lt;b&gt;null&lt;/b&gt; for the default</em>
<a class="jxr_linenumber" name="207" href="#207">207</a> <em class="jxr_javadoccomment">     * @return the new hierarchical configuration (the result is &lt;b&gt;null&lt;/b&gt; if</em>
<a class="jxr_linenumber" name="208" href="#208">208</a> <em class="jxr_javadoccomment">     *         and only if the passed in configuration is &lt;b&gt;null&lt;/b&gt;)</em>
<a class="jxr_linenumber" name="209" href="#209">209</a> <em class="jxr_javadoccomment">     * @since 1.6</em>
<a class="jxr_linenumber" name="210" href="#210">210</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="211" href="#211">211</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../org/apache/commons/configuration/HierarchicalConfiguration.html">HierarchicalConfiguration</a> convertToHierarchical(
<a class="jxr_linenumber" name="212" href="#212">212</a>             <a href="../../../../org/apache/commons/configuration/Configuration.html">Configuration</a> conf, <a href="../../../../org/apache/commons/configuration/tree/ExpressionEngine.html">ExpressionEngine</a> engine)
<a class="jxr_linenumber" name="213" href="#213">213</a>     {
<a class="jxr_linenumber" name="214" href="#214">214</a>         <strong class="jxr_keyword">if</strong> (conf == <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="215" href="#215">215</a>         {
<a class="jxr_linenumber" name="216" href="#216">216</a>             <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="217" href="#217">217</a>         }
<a class="jxr_linenumber" name="218" href="#218">218</a> 
<a class="jxr_linenumber" name="219" href="#219">219</a>         <strong class="jxr_keyword">if</strong> (conf instanceof HierarchicalConfiguration)
<a class="jxr_linenumber" name="220" href="#220">220</a>         {
<a class="jxr_linenumber" name="221" href="#221">221</a>             <a href="../../../../org/apache/commons/configuration/HierarchicalConfiguration.html">HierarchicalConfiguration</a> hc;
<a class="jxr_linenumber" name="222" href="#222">222</a>             <strong class="jxr_keyword">if</strong> (conf instanceof Reloadable)
<a class="jxr_linenumber" name="223" href="#223">223</a>             {
<a class="jxr_linenumber" name="224" href="#224">224</a>                 Object lock = ((Reloadable) conf).getReloadLock();
<a class="jxr_linenumber" name="225" href="#225">225</a>                 <strong class="jxr_keyword">synchronized</strong> (lock)
<a class="jxr_linenumber" name="226" href="#226">226</a>                 {
<a class="jxr_linenumber" name="227" href="#227">227</a>                     hc = <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/commons/configuration/HierarchicalConfiguration.html">HierarchicalConfiguration</a>((HierarchicalConfiguration) conf);
<a class="jxr_linenumber" name="228" href="#228">228</a>                 }
<a class="jxr_linenumber" name="229" href="#229">229</a>             }
<a class="jxr_linenumber" name="230" href="#230">230</a>             <strong class="jxr_keyword">else</strong>
<a class="jxr_linenumber" name="231" href="#231">231</a>             {
<a class="jxr_linenumber" name="232" href="#232">232</a>                 hc = (HierarchicalConfiguration) conf;
<a class="jxr_linenumber" name="233" href="#233">233</a>             }
<a class="jxr_linenumber" name="234" href="#234">234</a>             <strong class="jxr_keyword">if</strong> (engine != <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="235" href="#235">235</a>             {
<a class="jxr_linenumber" name="236" href="#236">236</a>                 hc.setExpressionEngine(engine);
<a class="jxr_linenumber" name="237" href="#237">237</a>             }
<a class="jxr_linenumber" name="238" href="#238">238</a> 
<a class="jxr_linenumber" name="239" href="#239">239</a>             <strong class="jxr_keyword">return</strong> hc;
<a class="jxr_linenumber" name="240" href="#240">240</a>         }
<a class="jxr_linenumber" name="241" href="#241">241</a>         <strong class="jxr_keyword">else</strong>
<a class="jxr_linenumber" name="242" href="#242">242</a>         {
<a class="jxr_linenumber" name="243" href="#243">243</a>             <a href="../../../../org/apache/commons/configuration/HierarchicalConfiguration.html">HierarchicalConfiguration</a> hc = <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/commons/configuration/HierarchicalConfiguration.html">HierarchicalConfiguration</a>();
<a class="jxr_linenumber" name="244" href="#244">244</a>             <strong class="jxr_keyword">if</strong> (engine != <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="245" href="#245">245</a>             {
<a class="jxr_linenumber" name="246" href="#246">246</a>                 hc.setExpressionEngine(engine);
<a class="jxr_linenumber" name="247" href="#247">247</a>             }
<a class="jxr_linenumber" name="248" href="#248">248</a> 
<a class="jxr_linenumber" name="249" href="#249">249</a>             <em class="jxr_comment">// Workaround for problem with copy()</em>
<a class="jxr_linenumber" name="250" href="#250">250</a>             <strong class="jxr_keyword">boolean</strong> delimiterParsingStatus = hc.isDelimiterParsingDisabled();
<a class="jxr_linenumber" name="251" href="#251">251</a>             hc.setDelimiterParsingDisabled(<strong class="jxr_keyword">true</strong>);
<a class="jxr_linenumber" name="252" href="#252">252</a>             hc.append(conf);
<a class="jxr_linenumber" name="253" href="#253">253</a>             hc.setDelimiterParsingDisabled(delimiterParsingStatus);
<a class="jxr_linenumber" name="254" href="#254">254</a>             <strong class="jxr_keyword">return</strong> hc;
<a class="jxr_linenumber" name="255" href="#255">255</a>         }
<a class="jxr_linenumber" name="256" href="#256">256</a>     }
<a class="jxr_linenumber" name="257" href="#257">257</a> 
<a class="jxr_linenumber" name="258" href="#258">258</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="259" href="#259">259</a> <em class="jxr_javadoccomment">     * Clones the given configuration object if this is possible. If the passed</em>
<a class="jxr_linenumber" name="260" href="#260">260</a> <em class="jxr_javadoccomment">     * in configuration object implements the {@code Cloneable}</em>
<a class="jxr_linenumber" name="261" href="#261">261</a> <em class="jxr_javadoccomment">     * interface, its {@code clone()} method will be invoked. Otherwise</em>
<a class="jxr_linenumber" name="262" href="#262">262</a> <em class="jxr_javadoccomment">     * an exception will be thrown.</em>
<a class="jxr_linenumber" name="263" href="#263">263</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="264" href="#264">264</a> <em class="jxr_javadoccomment">     * @param config the configuration object to be cloned (can be &lt;b&gt;null&lt;/b&gt;)</em>
<a class="jxr_linenumber" name="265" href="#265">265</a> <em class="jxr_javadoccomment">     * @return the cloned configuration (&lt;b&gt;null&lt;/b&gt; if the argument was</em>
<a class="jxr_linenumber" name="266" href="#266">266</a> <em class="jxr_javadoccomment">     * &lt;b&gt;null&lt;/b&gt;, too)</em>
<a class="jxr_linenumber" name="267" href="#267">267</a> <em class="jxr_javadoccomment">     * @throws ConfigurationRuntimeException if cloning is not supported for</em>
<a class="jxr_linenumber" name="268" href="#268">268</a> <em class="jxr_javadoccomment">     * this object</em>
<a class="jxr_linenumber" name="269" href="#269">269</a> <em class="jxr_javadoccomment">     * @since 1.3</em>
<a class="jxr_linenumber" name="270" href="#270">270</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="271" href="#271">271</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../org/apache/commons/configuration/Configuration.html">Configuration</a> cloneConfiguration(<a href="../../../../org/apache/commons/configuration/Configuration.html">Configuration</a> config)
<a class="jxr_linenumber" name="272" href="#272">272</a>             <strong class="jxr_keyword">throws</strong> <a href="../../../../org/apache/commons/configuration/ConfigurationRuntimeException.html">ConfigurationRuntimeException</a>
<a class="jxr_linenumber" name="273" href="#273">273</a>     {
<a class="jxr_linenumber" name="274" href="#274">274</a>         <strong class="jxr_keyword">if</strong> (config == <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="275" href="#275">275</a>         {
<a class="jxr_linenumber" name="276" href="#276">276</a>             <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="277" href="#277">277</a>         }
<a class="jxr_linenumber" name="278" href="#278">278</a>         <strong class="jxr_keyword">else</strong>
<a class="jxr_linenumber" name="279" href="#279">279</a>         {
<a class="jxr_linenumber" name="280" href="#280">280</a>             <strong class="jxr_keyword">try</strong>
<a class="jxr_linenumber" name="281" href="#281">281</a>             {
<a class="jxr_linenumber" name="282" href="#282">282</a>                 <strong class="jxr_keyword">return</strong> (Configuration) clone(config);
<a class="jxr_linenumber" name="283" href="#283">283</a>             }
<a class="jxr_linenumber" name="284" href="#284">284</a>             <strong class="jxr_keyword">catch</strong> (CloneNotSupportedException cnex)
<a class="jxr_linenumber" name="285" href="#285">285</a>             {
<a class="jxr_linenumber" name="286" href="#286">286</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/commons/configuration/ConfigurationRuntimeException.html">ConfigurationRuntimeException</a>(cnex);
<a class="jxr_linenumber" name="287" href="#287">287</a>             }
<a class="jxr_linenumber" name="288" href="#288">288</a>         }
<a class="jxr_linenumber" name="289" href="#289">289</a>     }
<a class="jxr_linenumber" name="290" href="#290">290</a> 
<a class="jxr_linenumber" name="291" href="#291">291</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="292" href="#292">292</a> <em class="jxr_javadoccomment">     * An internally used helper method for cloning objects. This implementation</em>
<a class="jxr_linenumber" name="293" href="#293">293</a> <em class="jxr_javadoccomment">     * is not very sophisticated nor efficient. Maybe it can be replaced by an</em>
<a class="jxr_linenumber" name="294" href="#294">294</a> <em class="jxr_javadoccomment">     * implementation from Commons Lang later. The method checks whether the</em>
<a class="jxr_linenumber" name="295" href="#295">295</a> <em class="jxr_javadoccomment">     * passed in object implements the {@code Cloneable} interface. If</em>
<a class="jxr_linenumber" name="296" href="#296">296</a> <em class="jxr_javadoccomment">     * this is the case, the {@code clone()} method is invoked by</em>
<a class="jxr_linenumber" name="297" href="#297">297</a> <em class="jxr_javadoccomment">     * reflection. Errors that occur during the cloning process are re-thrown as</em>
<a class="jxr_linenumber" name="298" href="#298">298</a> <em class="jxr_javadoccomment">     * runtime exceptions.</em>
<a class="jxr_linenumber" name="299" href="#299">299</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="300" href="#300">300</a> <em class="jxr_javadoccomment">     * @param obj the object to be cloned</em>
<a class="jxr_linenumber" name="301" href="#301">301</a> <em class="jxr_javadoccomment">     * @return the cloned object</em>
<a class="jxr_linenumber" name="302" href="#302">302</a> <em class="jxr_javadoccomment">     * @throws CloneNotSupportedException if the object cannot be cloned</em>
<a class="jxr_linenumber" name="303" href="#303">303</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="304" href="#304">304</a>     <strong class="jxr_keyword">static</strong> Object clone(Object obj) <strong class="jxr_keyword">throws</strong> CloneNotSupportedException
<a class="jxr_linenumber" name="305" href="#305">305</a>     {
<a class="jxr_linenumber" name="306" href="#306">306</a>         <strong class="jxr_keyword">if</strong> (obj instanceof Cloneable)
<a class="jxr_linenumber" name="307" href="#307">307</a>         {
<a class="jxr_linenumber" name="308" href="#308">308</a>             <strong class="jxr_keyword">try</strong>
<a class="jxr_linenumber" name="309" href="#309">309</a>             {
<a class="jxr_linenumber" name="310" href="#310">310</a>                 Method m = obj.getClass().getMethod(METHOD_CLONE);
<a class="jxr_linenumber" name="311" href="#311">311</a>                 <strong class="jxr_keyword">return</strong> m.invoke(obj);
<a class="jxr_linenumber" name="312" href="#312">312</a>             }
<a class="jxr_linenumber" name="313" href="#313">313</a>             <strong class="jxr_keyword">catch</strong> (NoSuchMethodException nmex)
<a class="jxr_linenumber" name="314" href="#314">314</a>             {
<a class="jxr_linenumber" name="315" href="#315">315</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> CloneNotSupportedException(
<a class="jxr_linenumber" name="316" href="#316">316</a>                         <span class="jxr_string">"No clone() method found for class"</span>
<a class="jxr_linenumber" name="317" href="#317">317</a>                                 + obj.getClass().getName());
<a class="jxr_linenumber" name="318" href="#318">318</a>             }
<a class="jxr_linenumber" name="319" href="#319">319</a>             <strong class="jxr_keyword">catch</strong> (IllegalAccessException iaex)
<a class="jxr_linenumber" name="320" href="#320">320</a>             {
<a class="jxr_linenumber" name="321" href="#321">321</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/commons/configuration/ConfigurationRuntimeException.html">ConfigurationRuntimeException</a>(iaex);
<a class="jxr_linenumber" name="322" href="#322">322</a>             }
<a class="jxr_linenumber" name="323" href="#323">323</a>             <strong class="jxr_keyword">catch</strong> (InvocationTargetException itex)
<a class="jxr_linenumber" name="324" href="#324">324</a>             {
<a class="jxr_linenumber" name="325" href="#325">325</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/commons/configuration/ConfigurationRuntimeException.html">ConfigurationRuntimeException</a>(itex);
<a class="jxr_linenumber" name="326" href="#326">326</a>             }
<a class="jxr_linenumber" name="327" href="#327">327</a>         }
<a class="jxr_linenumber" name="328" href="#328">328</a>         <strong class="jxr_keyword">else</strong>
<a class="jxr_linenumber" name="329" href="#329">329</a>         {
<a class="jxr_linenumber" name="330" href="#330">330</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> CloneNotSupportedException(obj.getClass().getName()
<a class="jxr_linenumber" name="331" href="#331">331</a>                     + <span class="jxr_string">" does not implement Cloneable"</span>);
<a class="jxr_linenumber" name="332" href="#332">332</a>         }
<a class="jxr_linenumber" name="333" href="#333">333</a>     }
<a class="jxr_linenumber" name="334" href="#334">334</a> 
<a class="jxr_linenumber" name="335" href="#335">335</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="336" href="#336">336</a> <em class="jxr_javadoccomment">     * Constructs a URL from a base path and a file name. The file name can</em>
<a class="jxr_linenumber" name="337" href="#337">337</a> <em class="jxr_javadoccomment">     * be absolute, relative or a full URL. If necessary the base path URL is</em>
<a class="jxr_linenumber" name="338" href="#338">338</a> <em class="jxr_javadoccomment">     * applied.</em>
<a class="jxr_linenumber" name="339" href="#339">339</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="340" href="#340">340</a> <em class="jxr_javadoccomment">     * @param basePath the base path URL (can be &lt;b&gt;null&lt;/b&gt;)</em>
<a class="jxr_linenumber" name="341" href="#341">341</a> <em class="jxr_javadoccomment">     * @param file the file name</em>
<a class="jxr_linenumber" name="342" href="#342">342</a> <em class="jxr_javadoccomment">     * @return the resulting URL</em>
<a class="jxr_linenumber" name="343" href="#343">343</a> <em class="jxr_javadoccomment">     * @throws MalformedURLException if URLs are invalid</em>
<a class="jxr_linenumber" name="344" href="#344">344</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="345" href="#345">345</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> URL getURL(String basePath, String file) <strong class="jxr_keyword">throws</strong> MalformedURLException
<a class="jxr_linenumber" name="346" href="#346">346</a>     {
<a class="jxr_linenumber" name="347" href="#347">347</a>         <strong class="jxr_keyword">return</strong> FileSystem.getDefaultFileSystem().getURL(basePath, file);
<a class="jxr_linenumber" name="348" href="#348">348</a>     }
<a class="jxr_linenumber" name="349" href="#349">349</a> 
<a class="jxr_linenumber" name="350" href="#350">350</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="351" href="#351">351</a> <em class="jxr_javadoccomment">     * Helper method for constructing a file object from a base path and a</em>
<a class="jxr_linenumber" name="352" href="#352">352</a> <em class="jxr_javadoccomment">     * file name. This method is called if the base path passed to</em>
<a class="jxr_linenumber" name="353" href="#353">353</a> <em class="jxr_javadoccomment">     * {@code getURL()} does not seem to be a valid URL.</em>
<a class="jxr_linenumber" name="354" href="#354">354</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="355" href="#355">355</a> <em class="jxr_javadoccomment">     * @param basePath the base path</em>
<a class="jxr_linenumber" name="356" href="#356">356</a> <em class="jxr_javadoccomment">     * @param fileName the file name</em>
<a class="jxr_linenumber" name="357" href="#357">357</a> <em class="jxr_javadoccomment">     * @return the resulting file</em>
<a class="jxr_linenumber" name="358" href="#358">358</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="359" href="#359">359</a>     <strong class="jxr_keyword">static</strong> File constructFile(String basePath, String fileName)
<a class="jxr_linenumber" name="360" href="#360">360</a>     {
<a class="jxr_linenumber" name="361" href="#361">361</a>         File file;
<a class="jxr_linenumber" name="362" href="#362">362</a> 
<a class="jxr_linenumber" name="363" href="#363">363</a>         File absolute = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="364" href="#364">364</a>         <strong class="jxr_keyword">if</strong> (fileName != <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="365" href="#365">365</a>         {
<a class="jxr_linenumber" name="366" href="#366">366</a>             absolute = <strong class="jxr_keyword">new</strong> File(fileName);
<a class="jxr_linenumber" name="367" href="#367">367</a>         }
<a class="jxr_linenumber" name="368" href="#368">368</a> 
<a class="jxr_linenumber" name="369" href="#369">369</a>         <strong class="jxr_keyword">if</strong> (StringUtils.isEmpty(basePath) || (absolute != <strong class="jxr_keyword">null</strong> &amp;&amp; absolute.isAbsolute()))
<a class="jxr_linenumber" name="370" href="#370">370</a>         {
<a class="jxr_linenumber" name="371" href="#371">371</a>             file = <strong class="jxr_keyword">new</strong> File(fileName);
<a class="jxr_linenumber" name="372" href="#372">372</a>         }
<a class="jxr_linenumber" name="373" href="#373">373</a>         <strong class="jxr_keyword">else</strong>
<a class="jxr_linenumber" name="374" href="#374">374</a>         {
<a class="jxr_linenumber" name="375" href="#375">375</a>             StringBuilder fName = <strong class="jxr_keyword">new</strong> StringBuilder();
<a class="jxr_linenumber" name="376" href="#376">376</a>             fName.append(basePath);
<a class="jxr_linenumber" name="377" href="#377">377</a> 
<a class="jxr_linenumber" name="378" href="#378">378</a>             <em class="jxr_comment">// My best friend. Paranoia.</em>
<a class="jxr_linenumber" name="379" href="#379">379</a>             <strong class="jxr_keyword">if</strong> (!basePath.endsWith(File.separator))
<a class="jxr_linenumber" name="380" href="#380">380</a>             {
<a class="jxr_linenumber" name="381" href="#381">381</a>                 fName.append(File.separator);
<a class="jxr_linenumber" name="382" href="#382">382</a>             }
<a class="jxr_linenumber" name="383" href="#383">383</a> 
<a class="jxr_linenumber" name="384" href="#384">384</a>             <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="385" href="#385">385</a>             <em class="jxr_comment">// We have a relative path, and we have</em>
<a class="jxr_linenumber" name="386" href="#386">386</a>             <em class="jxr_comment">// two possible forms here. If we have the</em>
<a class="jxr_linenumber" name="387" href="#387">387</a>             <em class="jxr_comment">// "./" form then just strip that off first</em>
<a class="jxr_linenumber" name="388" href="#388">388</a>             <em class="jxr_comment">// before continuing.</em>
<a class="jxr_linenumber" name="389" href="#389">389</a>             <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="390" href="#390">390</a>             <strong class="jxr_keyword">if</strong> (fileName.startsWith(<span class="jxr_string">"."</span> + File.separator))
<a class="jxr_linenumber" name="391" href="#391">391</a>             {
<a class="jxr_linenumber" name="392" href="#392">392</a>                 fName.append(fileName.substring(2));
<a class="jxr_linenumber" name="393" href="#393">393</a>             }
<a class="jxr_linenumber" name="394" href="#394">394</a>             <strong class="jxr_keyword">else</strong>
<a class="jxr_linenumber" name="395" href="#395">395</a>             {
<a class="jxr_linenumber" name="396" href="#396">396</a>                 fName.append(fileName);
<a class="jxr_linenumber" name="397" href="#397">397</a>             }
<a class="jxr_linenumber" name="398" href="#398">398</a> 
<a class="jxr_linenumber" name="399" href="#399">399</a>             file = <strong class="jxr_keyword">new</strong> File(fName.toString());
<a class="jxr_linenumber" name="400" href="#400">400</a>         }
<a class="jxr_linenumber" name="401" href="#401">401</a> 
<a class="jxr_linenumber" name="402" href="#402">402</a>         <strong class="jxr_keyword">return</strong> file;
<a class="jxr_linenumber" name="403" href="#403">403</a>     }
<a class="jxr_linenumber" name="404" href="#404">404</a> 
<a class="jxr_linenumber" name="405" href="#405">405</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="406" href="#406">406</a> <em class="jxr_javadoccomment">     * Return the location of the specified resource by searching the user home</em>
<a class="jxr_linenumber" name="407" href="#407">407</a> <em class="jxr_javadoccomment">     * directory, the current classpath and the system classpath.</em>
<a class="jxr_linenumber" name="408" href="#408">408</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="409" href="#409">409</a> <em class="jxr_javadoccomment">     * @param name the name of the resource</em>
<a class="jxr_linenumber" name="410" href="#410">410</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="411" href="#411">411</a> <em class="jxr_javadoccomment">     * @return the location of the resource</em>
<a class="jxr_linenumber" name="412" href="#412">412</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="413" href="#413">413</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> URL locate(String name)
<a class="jxr_linenumber" name="414" href="#414">414</a>     {
<a class="jxr_linenumber" name="415" href="#415">415</a>         <strong class="jxr_keyword">return</strong> locate(<strong class="jxr_keyword">null</strong>, name);
<a class="jxr_linenumber" name="416" href="#416">416</a>     }
<a class="jxr_linenumber" name="417" href="#417">417</a> 
<a class="jxr_linenumber" name="418" href="#418">418</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="419" href="#419">419</a> <em class="jxr_javadoccomment">     * Return the location of the specified resource by searching the user home</em>
<a class="jxr_linenumber" name="420" href="#420">420</a> <em class="jxr_javadoccomment">     * directory, the current classpath and the system classpath.</em>
<a class="jxr_linenumber" name="421" href="#421">421</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="422" href="#422">422</a> <em class="jxr_javadoccomment">     * @param base the base path of the resource</em>
<a class="jxr_linenumber" name="423" href="#423">423</a> <em class="jxr_javadoccomment">     * @param name the name of the resource</em>
<a class="jxr_linenumber" name="424" href="#424">424</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="425" href="#425">425</a> <em class="jxr_javadoccomment">     * @return the location of the resource</em>
<a class="jxr_linenumber" name="426" href="#426">426</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="427" href="#427">427</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> URL locate(String base, String name)
<a class="jxr_linenumber" name="428" href="#428">428</a>     {
<a class="jxr_linenumber" name="429" href="#429">429</a>         <strong class="jxr_keyword">return</strong> locate(FileSystem.getDefaultFileSystem(), base, name);
<a class="jxr_linenumber" name="430" href="#430">430</a>     }
<a class="jxr_linenumber" name="431" href="#431">431</a> 
<a class="jxr_linenumber" name="432" href="#432">432</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="433" href="#433">433</a> <em class="jxr_javadoccomment">     * Return the location of the specified resource by searching the user home</em>
<a class="jxr_linenumber" name="434" href="#434">434</a> <em class="jxr_javadoccomment">     * directory, the current classpath and the system classpath.</em>
<a class="jxr_linenumber" name="435" href="#435">435</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="436" href="#436">436</a> <em class="jxr_javadoccomment">     * @param fileSystem the FileSystem to use.</em>
<a class="jxr_linenumber" name="437" href="#437">437</a> <em class="jxr_javadoccomment">     * @param base the base path of the resource</em>
<a class="jxr_linenumber" name="438" href="#438">438</a> <em class="jxr_javadoccomment">     * @param name the name of the resource</em>
<a class="jxr_linenumber" name="439" href="#439">439</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="440" href="#440">440</a> <em class="jxr_javadoccomment">     * @return the location of the resource</em>
<a class="jxr_linenumber" name="441" href="#441">441</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="442" href="#442">442</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> URL locate(<a href="../../../../org/apache/commons/configuration/FileSystem.html">FileSystem</a> fileSystem, String base, String name)
<a class="jxr_linenumber" name="443" href="#443">443</a>     {
<a class="jxr_linenumber" name="444" href="#444">444</a>         <strong class="jxr_keyword">if</strong> (LOG.isDebugEnabled())
<a class="jxr_linenumber" name="445" href="#445">445</a>         {
<a class="jxr_linenumber" name="446" href="#446">446</a>             StringBuilder buf = <strong class="jxr_keyword">new</strong> StringBuilder();
<a class="jxr_linenumber" name="447" href="#447">447</a>             buf.append(<span class="jxr_string">"ConfigurationUtils.locate(): base is "</span>).append(base);
<a class="jxr_linenumber" name="448" href="#448">448</a>             buf.append(<span class="jxr_string">", name is "</span>).append(name);
<a class="jxr_linenumber" name="449" href="#449">449</a>             LOG.debug(buf.toString());
<a class="jxr_linenumber" name="450" href="#450">450</a>         }
<a class="jxr_linenumber" name="451" href="#451">451</a> 
<a class="jxr_linenumber" name="452" href="#452">452</a>         <strong class="jxr_keyword">if</strong> (name == <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="453" href="#453">453</a>         {
<a class="jxr_linenumber" name="454" href="#454">454</a>             <em class="jxr_comment">// undefined, always return null</em>
<a class="jxr_linenumber" name="455" href="#455">455</a>             <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="456" href="#456">456</a>         }
<a class="jxr_linenumber" name="457" href="#457">457</a> 
<a class="jxr_linenumber" name="458" href="#458">458</a>         <em class="jxr_comment">// attempt to create an URL directly</em>
<a class="jxr_linenumber" name="459" href="#459">459</a> 
<a class="jxr_linenumber" name="460" href="#460">460</a>         URL url = fileSystem.locateFromURL(base, name);
<a class="jxr_linenumber" name="461" href="#461">461</a> 
<a class="jxr_linenumber" name="462" href="#462">462</a>         <em class="jxr_comment">// attempt to load from an absolute path</em>
<a class="jxr_linenumber" name="463" href="#463">463</a>         <strong class="jxr_keyword">if</strong> (url == <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="464" href="#464">464</a>         {
<a class="jxr_linenumber" name="465" href="#465">465</a>             File file = <strong class="jxr_keyword">new</strong> File(name);
<a class="jxr_linenumber" name="466" href="#466">466</a>             <strong class="jxr_keyword">if</strong> (file.isAbsolute() &amp;&amp; file.exists()) <em class="jxr_comment">// already absolute?</em>
<a class="jxr_linenumber" name="467" href="#467">467</a>             {
<a class="jxr_linenumber" name="468" href="#468">468</a>                 <strong class="jxr_keyword">try</strong>
<a class="jxr_linenumber" name="469" href="#469">469</a>                 {
<a class="jxr_linenumber" name="470" href="#470">470</a>                     url = toURL(file);
<a class="jxr_linenumber" name="471" href="#471">471</a>                     LOG.debug(<span class="jxr_string">"Loading configuration from the absolute path "</span> + name);
<a class="jxr_linenumber" name="472" href="#472">472</a>                 }
<a class="jxr_linenumber" name="473" href="#473">473</a>                 <strong class="jxr_keyword">catch</strong> (MalformedURLException e)
<a class="jxr_linenumber" name="474" href="#474">474</a>                 {
<a class="jxr_linenumber" name="475" href="#475">475</a>                     LOG.warn(<span class="jxr_string">"Could not obtain URL from file"</span>, e);
<a class="jxr_linenumber" name="476" href="#476">476</a>                 }
<a class="jxr_linenumber" name="477" href="#477">477</a>             }
<a class="jxr_linenumber" name="478" href="#478">478</a>         }
<a class="jxr_linenumber" name="479" href="#479">479</a> 
<a class="jxr_linenumber" name="480" href="#480">480</a>         <em class="jxr_comment">// attempt to load from the base directory</em>
<a class="jxr_linenumber" name="481" href="#481">481</a>         <strong class="jxr_keyword">if</strong> (url == <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="482" href="#482">482</a>         {
<a class="jxr_linenumber" name="483" href="#483">483</a>             <strong class="jxr_keyword">try</strong>
<a class="jxr_linenumber" name="484" href="#484">484</a>             {
<a class="jxr_linenumber" name="485" href="#485">485</a>                 File file = constructFile(base, name);
<a class="jxr_linenumber" name="486" href="#486">486</a>                 <strong class="jxr_keyword">if</strong> (file != <strong class="jxr_keyword">null</strong> &amp;&amp; file.exists())
<a class="jxr_linenumber" name="487" href="#487">487</a>                 {
<a class="jxr_linenumber" name="488" href="#488">488</a>                     url = toURL(file);
<a class="jxr_linenumber" name="489" href="#489">489</a>                 }
<a class="jxr_linenumber" name="490" href="#490">490</a> 
<a class="jxr_linenumber" name="491" href="#491">491</a>                 <strong class="jxr_keyword">if</strong> (url != <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="492" href="#492">492</a>                 {
<a class="jxr_linenumber" name="493" href="#493">493</a>                     LOG.debug(<span class="jxr_string">"Loading configuration from the path "</span> + file);
<a class="jxr_linenumber" name="494" href="#494">494</a>                 }
<a class="jxr_linenumber" name="495" href="#495">495</a>             }
<a class="jxr_linenumber" name="496" href="#496">496</a>             <strong class="jxr_keyword">catch</strong> (MalformedURLException e)
<a class="jxr_linenumber" name="497" href="#497">497</a>             {
<a class="jxr_linenumber" name="498" href="#498">498</a>                 LOG.warn(<span class="jxr_string">"Could not obtain URL from file"</span>, e);
<a class="jxr_linenumber" name="499" href="#499">499</a>             }
<a class="jxr_linenumber" name="500" href="#500">500</a>         }
<a class="jxr_linenumber" name="501" href="#501">501</a> 
<a class="jxr_linenumber" name="502" href="#502">502</a>         <em class="jxr_comment">// attempt to load from the user home directory</em>
<a class="jxr_linenumber" name="503" href="#503">503</a>         <strong class="jxr_keyword">if</strong> (url == <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="504" href="#504">504</a>         {
<a class="jxr_linenumber" name="505" href="#505">505</a>             <strong class="jxr_keyword">try</strong>
<a class="jxr_linenumber" name="506" href="#506">506</a>             {
<a class="jxr_linenumber" name="507" href="#507">507</a>                 File file = constructFile(System.getProperty(<span class="jxr_string">"user.home"</span>), name);
<a class="jxr_linenumber" name="508" href="#508">508</a>                 <strong class="jxr_keyword">if</strong> (file != <strong class="jxr_keyword">null</strong> &amp;&amp; file.exists())
<a class="jxr_linenumber" name="509" href="#509">509</a>                 {
<a class="jxr_linenumber" name="510" href="#510">510</a>                     url = toURL(file);
<a class="jxr_linenumber" name="511" href="#511">511</a>                 }
<a class="jxr_linenumber" name="512" href="#512">512</a> 
<a class="jxr_linenumber" name="513" href="#513">513</a>                 <strong class="jxr_keyword">if</strong> (url != <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="514" href="#514">514</a>                 {
<a class="jxr_linenumber" name="515" href="#515">515</a>                     LOG.debug(<span class="jxr_string">"Loading configuration from the home path "</span> + file);
<a class="jxr_linenumber" name="516" href="#516">516</a>                 }
<a class="jxr_linenumber" name="517" href="#517">517</a> 
<a class="jxr_linenumber" name="518" href="#518">518</a>             }
<a class="jxr_linenumber" name="519" href="#519">519</a>             <strong class="jxr_keyword">catch</strong> (MalformedURLException e)
<a class="jxr_linenumber" name="520" href="#520">520</a>             {
<a class="jxr_linenumber" name="521" href="#521">521</a>                 LOG.warn(<span class="jxr_string">"Could not obtain URL from file"</span>, e);
<a class="jxr_linenumber" name="522" href="#522">522</a>             }
<a class="jxr_linenumber" name="523" href="#523">523</a>         }
<a class="jxr_linenumber" name="524" href="#524">524</a> 
<a class="jxr_linenumber" name="525" href="#525">525</a>         <em class="jxr_comment">// attempt to load from classpath</em>
<a class="jxr_linenumber" name="526" href="#526">526</a>         <strong class="jxr_keyword">if</strong> (url == <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="527" href="#527">527</a>         {
<a class="jxr_linenumber" name="528" href="#528">528</a>             url = locateFromClasspath(name);
<a class="jxr_linenumber" name="529" href="#529">529</a>         }
<a class="jxr_linenumber" name="530" href="#530">530</a>         <strong class="jxr_keyword">return</strong> url;
<a class="jxr_linenumber" name="531" href="#531">531</a>     }
<a class="jxr_linenumber" name="532" href="#532">532</a> 
<a class="jxr_linenumber" name="533" href="#533">533</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="534" href="#534">534</a> <em class="jxr_javadoccomment">     * Tries to find a resource with the given name in the classpath.</em>
<a class="jxr_linenumber" name="535" href="#535">535</a> <em class="jxr_javadoccomment">     * @param resourceName the name of the resource</em>
<a class="jxr_linenumber" name="536" href="#536">536</a> <em class="jxr_javadoccomment">     * @return the URL to the found resource or &lt;b&gt;null&lt;/b&gt; if the resource</em>
<a class="jxr_linenumber" name="537" href="#537">537</a> <em class="jxr_javadoccomment">     * cannot be found</em>
<a class="jxr_linenumber" name="538" href="#538">538</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="539" href="#539">539</a>     <strong class="jxr_keyword">static</strong> URL locateFromClasspath(String resourceName)
<a class="jxr_linenumber" name="540" href="#540">540</a>     {
<a class="jxr_linenumber" name="541" href="#541">541</a>         URL url = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="542" href="#542">542</a>         <em class="jxr_comment">// attempt to load from the context classpath</em>
<a class="jxr_linenumber" name="543" href="#543">543</a>         ClassLoader loader = Thread.currentThread().getContextClassLoader();
<a class="jxr_linenumber" name="544" href="#544">544</a>         <strong class="jxr_keyword">if</strong> (loader != <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="545" href="#545">545</a>         {
<a class="jxr_linenumber" name="546" href="#546">546</a>             url = loader.getResource(resourceName);
<a class="jxr_linenumber" name="547" href="#547">547</a> 
<a class="jxr_linenumber" name="548" href="#548">548</a>             <strong class="jxr_keyword">if</strong> (url != <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="549" href="#549">549</a>             {
<a class="jxr_linenumber" name="550" href="#550">550</a>                 LOG.debug(<span class="jxr_string">"Loading configuration from the context classpath ("</span> + resourceName + <span class="jxr_string">")"</span>);
<a class="jxr_linenumber" name="551" href="#551">551</a>             }
<a class="jxr_linenumber" name="552" href="#552">552</a>         }
<a class="jxr_linenumber" name="553" href="#553">553</a> 
<a class="jxr_linenumber" name="554" href="#554">554</a>         <em class="jxr_comment">// attempt to load from the system classpath</em>
<a class="jxr_linenumber" name="555" href="#555">555</a>         <strong class="jxr_keyword">if</strong> (url == <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="556" href="#556">556</a>         {
<a class="jxr_linenumber" name="557" href="#557">557</a>             url = ClassLoader.getSystemResource(resourceName);
<a class="jxr_linenumber" name="558" href="#558">558</a> 
<a class="jxr_linenumber" name="559" href="#559">559</a>             <strong class="jxr_keyword">if</strong> (url != <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="560" href="#560">560</a>             {
<a class="jxr_linenumber" name="561" href="#561">561</a>                 LOG.debug(<span class="jxr_string">"Loading configuration from the system classpath ("</span> + resourceName + <span class="jxr_string">")"</span>);
<a class="jxr_linenumber" name="562" href="#562">562</a>             }
<a class="jxr_linenumber" name="563" href="#563">563</a>         }
<a class="jxr_linenumber" name="564" href="#564">564</a>         <strong class="jxr_keyword">return</strong> url;
<a class="jxr_linenumber" name="565" href="#565">565</a>     }
<a class="jxr_linenumber" name="566" href="#566">566</a> 
<a class="jxr_linenumber" name="567" href="#567">567</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="568" href="#568">568</a> <em class="jxr_javadoccomment">     * Return the path without the file name, for example <a href="http://xyz.net/foo/bar.xml" target="alexandria_uri">http://xyz.net/foo/bar.xml</a></em>
<a class="jxr_linenumber" name="569" href="#569">569</a> <em class="jxr_javadoccomment">     * results in <a href="http://xyz.net/foo/" target="alexandria_uri">http://xyz.net/foo/</a></em>
<a class="jxr_linenumber" name="570" href="#570">570</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="571" href="#571">571</a> <em class="jxr_javadoccomment">     * @param url the URL from which to extract the path</em>
<a class="jxr_linenumber" name="572" href="#572">572</a> <em class="jxr_javadoccomment">     * @return the path component of the passed in URL</em>
<a class="jxr_linenumber" name="573" href="#573">573</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="574" href="#574">574</a>     <strong class="jxr_keyword">static</strong> String getBasePath(URL url)
<a class="jxr_linenumber" name="575" href="#575">575</a>     {
<a class="jxr_linenumber" name="576" href="#576">576</a>         <strong class="jxr_keyword">if</strong> (url == <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="577" href="#577">577</a>         {
<a class="jxr_linenumber" name="578" href="#578">578</a>             <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="579" href="#579">579</a>         }
<a class="jxr_linenumber" name="580" href="#580">580</a> 
<a class="jxr_linenumber" name="581" href="#581">581</a>         String s = url.toString();
<a class="jxr_linenumber" name="582" href="#582">582</a>         <strong class="jxr_keyword">if</strong> (s.startsWith(FILE_SCHEME) &amp;&amp; !s.startsWith(<span class="jxr_string">"file://"</span>))
<a class="jxr_linenumber" name="583" href="#583">583</a>         {
<a class="jxr_linenumber" name="584" href="#584">584</a>             s = <span class="jxr_string">"file://"</span> + s.substring(FILE_SCHEME.length());
<a class="jxr_linenumber" name="585" href="#585">585</a>         }
<a class="jxr_linenumber" name="586" href="#586">586</a> 
<a class="jxr_linenumber" name="587" href="#587">587</a>         <strong class="jxr_keyword">if</strong> (s.endsWith(<span class="jxr_string">"/"</span>) || StringUtils.isEmpty(url.getPath()))
<a class="jxr_linenumber" name="588" href="#588">588</a>         {
<a class="jxr_linenumber" name="589" href="#589">589</a>             <strong class="jxr_keyword">return</strong> s;
<a class="jxr_linenumber" name="590" href="#590">590</a>         }
<a class="jxr_linenumber" name="591" href="#591">591</a>         <strong class="jxr_keyword">else</strong>
<a class="jxr_linenumber" name="592" href="#592">592</a>         {
<a class="jxr_linenumber" name="593" href="#593">593</a>             <strong class="jxr_keyword">return</strong> s.substring(0, s.lastIndexOf(<span class="jxr_string">"/"</span>) + 1);
<a class="jxr_linenumber" name="594" href="#594">594</a>         }
<a class="jxr_linenumber" name="595" href="#595">595</a>     }
<a class="jxr_linenumber" name="596" href="#596">596</a> 
<a class="jxr_linenumber" name="597" href="#597">597</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="598" href="#598">598</a> <em class="jxr_javadoccomment">     * Extract the file name from the specified URL.</em>
<a class="jxr_linenumber" name="599" href="#599">599</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="600" href="#600">600</a> <em class="jxr_javadoccomment">     * @param url the URL from which to extract the file name</em>
<a class="jxr_linenumber" name="601" href="#601">601</a> <em class="jxr_javadoccomment">     * @return the extracted file name</em>
<a class="jxr_linenumber" name="602" href="#602">602</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="603" href="#603">603</a>     <strong class="jxr_keyword">static</strong> String getFileName(URL url)
<a class="jxr_linenumber" name="604" href="#604">604</a>     {
<a class="jxr_linenumber" name="605" href="#605">605</a>         <strong class="jxr_keyword">if</strong> (url == <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="606" href="#606">606</a>         {
<a class="jxr_linenumber" name="607" href="#607">607</a>             <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="608" href="#608">608</a>         }
<a class="jxr_linenumber" name="609" href="#609">609</a> 
<a class="jxr_linenumber" name="610" href="#610">610</a>         String path = url.getPath();
<a class="jxr_linenumber" name="611" href="#611">611</a> 
<a class="jxr_linenumber" name="612" href="#612">612</a>         <strong class="jxr_keyword">if</strong> (path.endsWith(<span class="jxr_string">"/"</span>) || StringUtils.isEmpty(path))
<a class="jxr_linenumber" name="613" href="#613">613</a>         {
<a class="jxr_linenumber" name="614" href="#614">614</a>             <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="615" href="#615">615</a>         }
<a class="jxr_linenumber" name="616" href="#616">616</a>         <strong class="jxr_keyword">else</strong>
<a class="jxr_linenumber" name="617" href="#617">617</a>         {
<a class="jxr_linenumber" name="618" href="#618">618</a>             <strong class="jxr_keyword">return</strong> path.substring(path.lastIndexOf(<span class="jxr_string">"/"</span>) + 1);
<a class="jxr_linenumber" name="619" href="#619">619</a>         }
<a class="jxr_linenumber" name="620" href="#620">620</a>     }
<a class="jxr_linenumber" name="621" href="#621">621</a> 
<a class="jxr_linenumber" name="622" href="#622">622</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="623" href="#623">623</a> <em class="jxr_javadoccomment">     * Tries to convert the specified base path and file name into a file object.</em>
<a class="jxr_linenumber" name="624" href="#624">624</a> <em class="jxr_javadoccomment">     * This method is called e.g. by the save() methods of file based</em>
<a class="jxr_linenumber" name="625" href="#625">625</a> <em class="jxr_javadoccomment">     * configurations. The parameter strings can be relative files, absolute</em>
<a class="jxr_linenumber" name="626" href="#626">626</a> <em class="jxr_javadoccomment">     * files and URLs as well. This implementation checks first whether the passed in</em>
<a class="jxr_linenumber" name="627" href="#627">627</a> <em class="jxr_javadoccomment">     * file name is absolute. If this is the case, it is returned. Otherwise</em>
<a class="jxr_linenumber" name="628" href="#628">628</a> <em class="jxr_javadoccomment">     * further checks are performed whether the base path and file name can be</em>
<a class="jxr_linenumber" name="629" href="#629">629</a> <em class="jxr_javadoccomment">     * combined to a valid URL or a valid file name. &lt;em&gt;Note:&lt;/em&gt; The test</em>
<a class="jxr_linenumber" name="630" href="#630">630</a> <em class="jxr_javadoccomment">     * if the passed in file name is absolute is performed using</em>
<a class="jxr_linenumber" name="631" href="#631">631</a> <em class="jxr_javadoccomment">     * {@code java.io.File.isAbsolute()}. If the file name starts with a</em>
<a class="jxr_linenumber" name="632" href="#632">632</a> <em class="jxr_javadoccomment">     * slash, this method will return &lt;b&gt;true&lt;/b&gt; on Unix, but &lt;b&gt;false&lt;/b&gt; on</em>
<a class="jxr_linenumber" name="633" href="#633">633</a> <em class="jxr_javadoccomment">     * Windows. So to ensure correct behavior for relative file names on all</em>
<a class="jxr_linenumber" name="634" href="#634">634</a> <em class="jxr_javadoccomment">     * platforms you should never let relative paths start with a slash. E.g.</em>
<a class="jxr_linenumber" name="635" href="#635">635</a> <em class="jxr_javadoccomment">     * in a configuration definition file do not use something like that:</em>
<a class="jxr_linenumber" name="636" href="#636">636</a> <em class="jxr_javadoccomment">     * &lt;pre&gt;</em>
<a class="jxr_linenumber" name="637" href="#637">637</a> <em class="jxr_javadoccomment">     * &amp;lt;properties fileName="/subdir/my.properties"/&amp;gt;</em>
<a class="jxr_linenumber" name="638" href="#638">638</a> <em class="jxr_javadoccomment">     * &lt;/pre&gt;</em>
<a class="jxr_linenumber" name="639" href="#639">639</a> <em class="jxr_javadoccomment">     * Under Windows this path would be resolved relative to the configuration</em>
<a class="jxr_linenumber" name="640" href="#640">640</a> <em class="jxr_javadoccomment">     * definition file. Under Unix this would be treated as an absolute path</em>
<a class="jxr_linenumber" name="641" href="#641">641</a> <em class="jxr_javadoccomment">     * name.</em>
<a class="jxr_linenumber" name="642" href="#642">642</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="643" href="#643">643</a> <em class="jxr_javadoccomment">     * @param basePath the base path</em>
<a class="jxr_linenumber" name="644" href="#644">644</a> <em class="jxr_javadoccomment">     * @param fileName the file name</em>
<a class="jxr_linenumber" name="645" href="#645">645</a> <em class="jxr_javadoccomment">     * @return the file object (&lt;b&gt;null&lt;/b&gt; if no file can be obtained)</em>
<a class="jxr_linenumber" name="646" href="#646">646</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="647" href="#647">647</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> File getFile(String basePath, String fileName)
<a class="jxr_linenumber" name="648" href="#648">648</a>     {
<a class="jxr_linenumber" name="649" href="#649">649</a>         <em class="jxr_comment">// Check if the file name is absolute</em>
<a class="jxr_linenumber" name="650" href="#650">650</a>         File f = <strong class="jxr_keyword">new</strong> File(fileName);
<a class="jxr_linenumber" name="651" href="#651">651</a>         <strong class="jxr_keyword">if</strong> (f.isAbsolute())
<a class="jxr_linenumber" name="652" href="#652">652</a>         {
<a class="jxr_linenumber" name="653" href="#653">653</a>             <strong class="jxr_keyword">return</strong> f;
<a class="jxr_linenumber" name="654" href="#654">654</a>         }
<a class="jxr_linenumber" name="655" href="#655">655</a> 
<a class="jxr_linenumber" name="656" href="#656">656</a>         <em class="jxr_comment">// Check if URLs are involved</em>
<a class="jxr_linenumber" name="657" href="#657">657</a>         URL url;
<a class="jxr_linenumber" name="658" href="#658">658</a>         <strong class="jxr_keyword">try</strong>
<a class="jxr_linenumber" name="659" href="#659">659</a>         {
<a class="jxr_linenumber" name="660" href="#660">660</a>             url = <strong class="jxr_keyword">new</strong> URL(<strong class="jxr_keyword">new</strong> URL(basePath), fileName);
<a class="jxr_linenumber" name="661" href="#661">661</a>         }
<a class="jxr_linenumber" name="662" href="#662">662</a>         <strong class="jxr_keyword">catch</strong> (MalformedURLException mex1)
<a class="jxr_linenumber" name="663" href="#663">663</a>         {
<a class="jxr_linenumber" name="664" href="#664">664</a>             <strong class="jxr_keyword">try</strong>
<a class="jxr_linenumber" name="665" href="#665">665</a>             {
<a class="jxr_linenumber" name="666" href="#666">666</a>                 url = <strong class="jxr_keyword">new</strong> URL(fileName);
<a class="jxr_linenumber" name="667" href="#667">667</a>             }
<a class="jxr_linenumber" name="668" href="#668">668</a>             <strong class="jxr_keyword">catch</strong> (MalformedURLException mex2)
<a class="jxr_linenumber" name="669" href="#669">669</a>             {
<a class="jxr_linenumber" name="670" href="#670">670</a>                 url = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="671" href="#671">671</a>             }
<a class="jxr_linenumber" name="672" href="#672">672</a>         }
<a class="jxr_linenumber" name="673" href="#673">673</a> 
<a class="jxr_linenumber" name="674" href="#674">674</a>         <strong class="jxr_keyword">if</strong> (url != <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="675" href="#675">675</a>         {
<a class="jxr_linenumber" name="676" href="#676">676</a>             <strong class="jxr_keyword">return</strong> fileFromURL(url);
<a class="jxr_linenumber" name="677" href="#677">677</a>         }
<a class="jxr_linenumber" name="678" href="#678">678</a> 
<a class="jxr_linenumber" name="679" href="#679">679</a>         <strong class="jxr_keyword">return</strong> constructFile(basePath, fileName);
<a class="jxr_linenumber" name="680" href="#680">680</a>     }
<a class="jxr_linenumber" name="681" href="#681">681</a> 
<a class="jxr_linenumber" name="682" href="#682">682</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="683" href="#683">683</a> <em class="jxr_javadoccomment">     * Tries to convert the specified URL to a file object. If this fails,</em>
<a class="jxr_linenumber" name="684" href="#684">684</a> <em class="jxr_javadoccomment">     * &lt;b&gt;null&lt;/b&gt; is returned. Note: This code has been copied from the</em>
<a class="jxr_linenumber" name="685" href="#685">685</a> <em class="jxr_javadoccomment">     * {@code FileUtils} class from &lt;em&gt;Commons IO&lt;/em&gt;.</em>
<a class="jxr_linenumber" name="686" href="#686">686</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="687" href="#687">687</a> <em class="jxr_javadoccomment">     * @param url the URL</em>
<a class="jxr_linenumber" name="688" href="#688">688</a> <em class="jxr_javadoccomment">     * @return the resulting file object</em>
<a class="jxr_linenumber" name="689" href="#689">689</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="690" href="#690">690</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> File fileFromURL(URL url)
<a class="jxr_linenumber" name="691" href="#691">691</a>     {
<a class="jxr_linenumber" name="692" href="#692">692</a>         <strong class="jxr_keyword">if</strong> (url == <strong class="jxr_keyword">null</strong> || !url.getProtocol().equals(PROTOCOL_FILE))
<a class="jxr_linenumber" name="693" href="#693">693</a>         {
<a class="jxr_linenumber" name="694" href="#694">694</a>             <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="695" href="#695">695</a>         }
<a class="jxr_linenumber" name="696" href="#696">696</a>         <strong class="jxr_keyword">else</strong>
<a class="jxr_linenumber" name="697" href="#697">697</a>         {
<a class="jxr_linenumber" name="698" href="#698">698</a>             String filename = url.getFile().replace('/', File.separatorChar);
<a class="jxr_linenumber" name="699" href="#699">699</a>             <strong class="jxr_keyword">int</strong> pos = 0;
<a class="jxr_linenumber" name="700" href="#700">700</a>             <strong class="jxr_keyword">while</strong> ((pos = filename.indexOf('%', pos)) &gt;= 0)
<a class="jxr_linenumber" name="701" href="#701">701</a>             {
<a class="jxr_linenumber" name="702" href="#702">702</a>                 <strong class="jxr_keyword">if</strong> (pos + 2 &lt; filename.length())
<a class="jxr_linenumber" name="703" href="#703">703</a>                 {
<a class="jxr_linenumber" name="704" href="#704">704</a>                     String hexStr = filename.substring(pos + 1, pos + 3);
<a class="jxr_linenumber" name="705" href="#705">705</a>                     <strong class="jxr_keyword">char</strong> ch = (<strong class="jxr_keyword">char</strong>) Integer.parseInt(hexStr, HEX);
<a class="jxr_linenumber" name="706" href="#706">706</a>                     filename = filename.substring(0, pos) + ch
<a class="jxr_linenumber" name="707" href="#707">707</a>                             + filename.substring(pos + 3);
<a class="jxr_linenumber" name="708" href="#708">708</a>                 }
<a class="jxr_linenumber" name="709" href="#709">709</a>             }
<a class="jxr_linenumber" name="710" href="#710">710</a>             <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> File(filename);
<a class="jxr_linenumber" name="711" href="#711">711</a>         }
<a class="jxr_linenumber" name="712" href="#712">712</a>     }
<a class="jxr_linenumber" name="713" href="#713">713</a> 
<a class="jxr_linenumber" name="714" href="#714">714</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="715" href="#715">715</a> <em class="jxr_javadoccomment">     * Convert the specified file into an URL. This method is equivalent</em>
<a class="jxr_linenumber" name="716" href="#716">716</a> <em class="jxr_javadoccomment">     * to file.toURI().toURL(). It was used to work around a bug in the JDK</em>
<a class="jxr_linenumber" name="717" href="#717">717</a> <em class="jxr_javadoccomment">     * preventing the transformation of a file into an URL if the file name</em>
<a class="jxr_linenumber" name="718" href="#718">718</a> <em class="jxr_javadoccomment">     * contains a '#' character. See the issue CONFIGURATION-300 for</em>
<a class="jxr_linenumber" name="719" href="#719">719</a> <em class="jxr_javadoccomment">     * more details. Now that we switched to JDK 1.4 we can directly use</em>
<a class="jxr_linenumber" name="720" href="#720">720</a> <em class="jxr_javadoccomment">     * file.toURI().toURL().</em>
<a class="jxr_linenumber" name="721" href="#721">721</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="722" href="#722">722</a> <em class="jxr_javadoccomment">     * @param file the file to be converted into an URL</em>
<a class="jxr_linenumber" name="723" href="#723">723</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="724" href="#724">724</a>     <strong class="jxr_keyword">static</strong> URL toURL(File file) <strong class="jxr_keyword">throws</strong> MalformedURLException
<a class="jxr_linenumber" name="725" href="#725">725</a>     {
<a class="jxr_linenumber" name="726" href="#726">726</a>         <strong class="jxr_keyword">return</strong> file.toURI().toURL();
<a class="jxr_linenumber" name="727" href="#727">727</a>     }
<a class="jxr_linenumber" name="728" href="#728">728</a> 
<a class="jxr_linenumber" name="729" href="#729">729</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="730" href="#730">730</a> <em class="jxr_javadoccomment">     * Enables runtime exceptions for the specified configuration object. This</em>
<a class="jxr_linenumber" name="731" href="#731">731</a> <em class="jxr_javadoccomment">     * method can be used for configuration implementations that may face errors</em>
<a class="jxr_linenumber" name="732" href="#732">732</a> <em class="jxr_javadoccomment">     * on normal property access, e.g. {@code DatabaseConfiguration} or</em>
<a class="jxr_linenumber" name="733" href="#733">733</a> <em class="jxr_javadoccomment">     * {@code JNDIConfiguration}. Per default such errors are simply</em>
<a class="jxr_linenumber" name="734" href="#734">734</a> <em class="jxr_javadoccomment">     * logged and then ignored. This implementation will register a special</em>
<a class="jxr_linenumber" name="735" href="#735">735</a> <em class="jxr_javadoccomment">     * {@link ConfigurationErrorListener} that throws a runtime</em>
<a class="jxr_linenumber" name="736" href="#736">736</a> <em class="jxr_javadoccomment">     * exception (namely a {@code ConfigurationRuntimeException}) on</em>
<a class="jxr_linenumber" name="737" href="#737">737</a> <em class="jxr_javadoccomment">     * each received error event.</em>
<a class="jxr_linenumber" name="738" href="#738">738</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="739" href="#739">739</a> <em class="jxr_javadoccomment">     * @param src the configuration, for which runtime exceptions are to be</em>
<a class="jxr_linenumber" name="740" href="#740">740</a> <em class="jxr_javadoccomment">     * enabled; this configuration must be derived from</em>
<a class="jxr_linenumber" name="741" href="#741">741</a> <em class="jxr_javadoccomment">     * {@link EventSource}</em>
<a class="jxr_linenumber" name="742" href="#742">742</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="743" href="#743">743</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> enableRuntimeExceptions(<a href="../../../../org/apache/commons/configuration/Configuration.html">Configuration</a> src)
<a class="jxr_linenumber" name="744" href="#744">744</a>     {
<a class="jxr_linenumber" name="745" href="#745">745</a>         <strong class="jxr_keyword">if</strong> (!(src instanceof EventSource))
<a class="jxr_linenumber" name="746" href="#746">746</a>         {
<a class="jxr_linenumber" name="747" href="#747">747</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(
<a class="jxr_linenumber" name="748" href="#748">748</a>                     <span class="jxr_string">"Configuration must be derived from EventSource!"</span>);
<a class="jxr_linenumber" name="749" href="#749">749</a>         }
<a class="jxr_linenumber" name="750" href="#750">750</a>         ((<a href="../../../../org/apache/commons/configuration/event/EventSource.html">EventSource</a>) src).addErrorListener(<strong class="jxr_keyword">new</strong> ConfigurationErrorListener()
<a class="jxr_linenumber" name="751" href="#751">751</a>         {
<a class="jxr_linenumber" name="752" href="#752">752</a>             <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> configurationError(<a href="../../../../org/apache/commons/configuration/event/ConfigurationErrorEvent.html">ConfigurationErrorEvent</a> event)
<a class="jxr_linenumber" name="753" href="#753">753</a>             {
<a class="jxr_linenumber" name="754" href="#754">754</a>                 <em class="jxr_comment">// Throw a runtime exception</em>
<a class="jxr_linenumber" name="755" href="#755">755</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/commons/configuration/ConfigurationRuntimeException.html">ConfigurationRuntimeException</a>(event.getCause());
<a class="jxr_linenumber" name="756" href="#756">756</a>             }
<a class="jxr_linenumber" name="757" href="#757">757</a>         });
<a class="jxr_linenumber" name="758" href="#758">758</a>     }
<a class="jxr_linenumber" name="759" href="#759">759</a> }
</pre>
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